15th. The Rio Gila rises in the Sierra de los Mimbres, and descends to the south, through a small and mountain bound valley until it unites with the Colorado.
IV. Lakes , Lagunes , &c.
- Timpanogos and Teyugo or Salado.
- Lagunas de Bavispe, San Martin, de Guzman, de Patos, de Encinillas and de Castilla in the state of Chihuahua.
- The Laguna de Cayman in the Bolson de Mapimi.
- The Lakes of Parras and Agua Verde on the west boundary of Coahuila.
- The Lakes of Charcas, Chairel and Chila in the state of San Luis Potosi.
- Nine small Soda Lakes in Zacatecas.
- The large and important Lake of Chapala and others in Jalisco.
- Pazcuaro, Cuizco, Araron, Huango, Tanguato, and Huaniquo in Michoacan.
- The five large Lakes of Tezcoco, Chalco, Xochimilco, San Cristoval and Zumpango in the valley of Mexico.